"Files" directory package

I have a couple different boards that I switch between, and they have different, board specific files in their "files" directory. Is there is a good way to create a menuconfig package for each of these sets files?

I guess further to my own question, is is as easy as setting the "Install directory" in the makefile?

define Package/acl/install
	$(INSTALL_DIR) $(1)/usr/bin
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/* $(1)/usr/bin/

If they're different boards, I got the idea from the "env" scripts and now manage them with git

Assuming you've saved what you want, so as not to overwrite

cd path/to/openwrt
git init env
ln -sf env/files files
ln -sf env/.config .config

You can then pick a branch for each board, and use git -C env <some command> from the root level of the OpenWrt build tree (or pushd env).